fixed handling of androids in EM engine for old tapes

[rocksndiamonds.git] / src / game_em / logic.c

diff --git a/src/game_em/logic.c b/src/game_em/logic.c
index de3966c1b137e44ab3ed66e17f693ab86788b37f..3c68bfb9f73ea6250de9abf3ef47b29ec65ad8a1 100644 (file)
--- a/src/game_em/logic.c
+++ b/src/game_em/logic.c
@@ -12,8 +12,7 @@
 #define ACID_ROLL      /* rolling objects go into acid rather than remove it */
 #define ACID_PLAYER    /* player gets killed by acid, but without explosion */
 
-#define RANDOM_RAW     (seed = seed << 31 | seed >> 1)
-#define RANDOM(x)      (RANDOM_RAW % x)
+#define RANDOM(x)      ((seed = seed << 31 | seed >> 1) % x)
 
 static short **cave, **next, **boom;
 static unsigned int seed;
@@ -83,6 +82,21 @@ static const byte is_amoeba[GAME_TILE_MAX] =
   [Xamoeba_8]          = 1
 };
 
+static byte is_android_blank[GAME_TILE_MAX] =
+{
+  [Xblank]             = 1,
+  [Xsplash_e]          = 1,
+  [Xsplash_w]          = 1,
+  [Xfake_acid_1]       = 1,
+  [Xfake_acid_2]       = 1,
+  [Xfake_acid_3]       = 1,
+  [Xfake_acid_4]       = 1,
+  [Xfake_acid_5]       = 1,
+  [Xfake_acid_6]       = 1,
+  [Xfake_acid_7]       = 1,
+  [Xfake_acid_8]       = 1
+};
+
 static const byte is_android_walkable[GAME_TILE_MAX] =
 {
   [Xblank]             = 1,
@@ -215,6 +229,22 @@ static void Lboom_eater_new(int x, int y, boolean chain_explosion)
   Lboom_eater(x, y);
 }
 
+static void Lboom_cave_new(int x, int y, int element)
+{
+  if (game_em.use_old_explosions)
+    return;
+
+  cave[x][y] = element;
+}
+
+static void Lboom_next_new(int x, int y, int element)
+{
+  if (game_em.use_old_explosions)
+    return;
+
+  next[x][y] = element;
+}
+
 static boolean player_killed(struct PLAYER *ply)
 {
   int x = ply->x;
@@ -1280,6 +1310,11 @@ static boolean player_digfield(struct PLAYER *ply, int dx, int dy)
     }
   }
 
+  /* check for wrap-around movement */
+  if (ply->x < lev.left ||
+      ply->x > lev.right - 1)
+    play_element_sound(oldx, oldy, SOUND_door, Xdoor_1);
+
   return result;
 }
 
@@ -1533,14 +1568,14 @@ static void Landroid(int x, int y)
 
   if (lev.android_clone_cnt == 0)
   {
-    if (!is_blank[cave[x-1][y-1]] &&
-       !is_blank[cave[x][y-1]]   &&
-       !is_blank[cave[x+1][y-1]] &&
-       !is_blank[cave[x-1][y]]   &&
-       !is_blank[cave[x+1][y]]   &&
-       !is_blank[cave[x-1][y+1]] &&
-       !is_blank[cave[x][y+1]]   &&
-       !is_blank[cave[x+1][y+1]])
+    if (!is_android_blank[cave[x-1][y-1]] &&
+       !is_android_blank[cave[x][y-1]]   &&
+       !is_android_blank[cave[x+1][y-1]] &&
+       !is_android_blank[cave[x-1][y]]   &&
+       !is_android_blank[cave[x+1][y]]   &&
+       !is_android_blank[cave[x-1][y+1]] &&
+       !is_android_blank[cave[x][y+1]]   &&
+       !is_android_blank[cave[x+1][y+1]])
       goto android_move;
 
     switch (RANDOM(8))
@@ -1644,91 +1679,91 @@ static void Landroid(int x, int y)
       /* randomly find a direction to move */
 
       case 0: /* S,NE,W,NW,SE,E,SW,N */
-       if (is_blank[cave[x][y+1]])   goto android_s;
-       if (is_blank[cave[x+1][y-1]]) goto android_ne;
-       if (is_blank[cave[x-1][y]])   goto android_w;
-       if (is_blank[cave[x-1][y-1]]) goto android_nw;
-       if (is_blank[cave[x+1][y+1]]) goto android_se;
-       if (is_blank[cave[x+1][y]])   goto android_e;
-       if (is_blank[cave[x-1][y+1]]) goto android_sw;
-       if (is_blank[cave[x][y-1]])   goto android_n;
+       if (is_android_blank[cave[x][y+1]])   goto android_s;
+       if (is_android_blank[cave[x+1][y-1]]) goto android_ne;
+       if (is_android_blank[cave[x-1][y]])   goto android_w;
+       if (is_android_blank[cave[x-1][y-1]]) goto android_nw;
+       if (is_android_blank[cave[x+1][y+1]]) goto android_se;
+       if (is_android_blank[cave[x+1][y]])   goto android_e;
+       if (is_android_blank[cave[x-1][y+1]]) goto android_sw;
+       if (is_android_blank[cave[x][y-1]])   goto android_n;
        goto android_move;
 
       case 1: /* NW,SE,N,S,NE,SW,E,W */
-       if (is_blank[cave[x-1][y-1]]) goto android_nw;
-       if (is_blank[cave[x+1][y+1]]) goto android_se;
-       if (is_blank[cave[x][y-1]])   goto android_n;
-       if (is_blank[cave[x][y+1]])   goto android_s;
-       if (is_blank[cave[x+1][y-1]]) goto android_ne;
-       if (is_blank[cave[x-1][y+1]]) goto android_sw;
-       if (is_blank[cave[x+1][y]])   goto android_e;
-       if (is_blank[cave[x-1][y]])   goto android_w;
+       if (is_android_blank[cave[x-1][y-1]]) goto android_nw;
+       if (is_android_blank[cave[x+1][y+1]]) goto android_se;
+       if (is_android_blank[cave[x][y-1]])   goto android_n;
+       if (is_android_blank[cave[x][y+1]])   goto android_s;
+       if (is_android_blank[cave[x+1][y-1]]) goto android_ne;
+       if (is_android_blank[cave[x-1][y+1]]) goto android_sw;
+       if (is_android_blank[cave[x+1][y]])   goto android_e;
+       if (is_android_blank[cave[x-1][y]])   goto android_w;
        goto android_move;
 
       case 2: /* SW,E,S,W,N,NW,SE,NE */
-       if (is_blank[cave[x-1][y+1]]) goto android_sw;
-       if (is_blank[cave[x+1][y]])   goto android_e;
-       if (is_blank[cave[x][y+1]])   goto android_s;
-       if (is_blank[cave[x-1][y]])   goto android_w;
-       if (is_blank[cave[x][y-1]])   goto android_n;
-       if (is_blank[cave[x-1][y-1]]) goto android_nw;
-       if (is_blank[cave[x+1][y+1]]) goto android_se;
-       if (is_blank[cave[x+1][y-1]]) goto android_ne;
+       if (is_android_blank[cave[x-1][y+1]]) goto android_sw;
+       if (is_android_blank[cave[x+1][y]])   goto android_e;
+       if (is_android_blank[cave[x][y+1]])   goto android_s;
+       if (is_android_blank[cave[x-1][y]])   goto android_w;
+       if (is_android_blank[cave[x][y-1]])   goto android_n;
+       if (is_android_blank[cave[x-1][y-1]]) goto android_nw;
+       if (is_android_blank[cave[x+1][y+1]]) goto android_se;
+       if (is_android_blank[cave[x+1][y-1]]) goto android_ne;
        goto android_move;
 
       case 3: /* N,SE,NE,E,W,S,NW,SW */
-       if (is_blank[cave[x][y-1]])   goto android_n;
-       if (is_blank[cave[x+1][y+1]]) goto android_se;
-       if (is_blank[cave[x+1][y-1]]) goto android_ne;
-       if (is_blank[cave[x+1][y]])   goto android_e;
-       if (is_blank[cave[x-1][y]])   goto android_w;
-       if (is_blank[cave[x][y+1]])   goto android_s;
-       if (is_blank[cave[x-1][y-1]]) goto android_nw;
-       if (is_blank[cave[x-1][y+1]]) goto android_sw;
+       if (is_android_blank[cave[x][y-1]])   goto android_n;
+       if (is_android_blank[cave[x+1][y+1]]) goto android_se;
+       if (is_android_blank[cave[x+1][y-1]]) goto android_ne;
+       if (is_android_blank[cave[x+1][y]])   goto android_e;
+       if (is_android_blank[cave[x-1][y]])   goto android_w;
+       if (is_android_blank[cave[x][y+1]])   goto android_s;
+       if (is_android_blank[cave[x-1][y-1]]) goto android_nw;
+       if (is_android_blank[cave[x-1][y+1]]) goto android_sw;
        goto android_move;
 
       case 4: /* SE,NW,E,NE,SW,W,N,S */
-       if (is_blank[cave[x+1][y+1]]) goto android_se;
-       if (is_blank[cave[x-1][y-1]]) goto android_nw;
-       if (is_blank[cave[x+1][y]])   goto android_e;
-       if (is_blank[cave[x+1][y-1]]) goto android_ne;
-       if (is_blank[cave[x-1][y+1]]) goto android_sw;
-       if (is_blank[cave[x-1][y]])   goto android_w;
-       if (is_blank[cave[x][y-1]])   goto android_n;
-       if (is_blank[cave[x][y+1]])   goto android_s;
+       if (is_android_blank[cave[x+1][y+1]]) goto android_se;
+       if (is_android_blank[cave[x-1][y-1]]) goto android_nw;
+       if (is_android_blank[cave[x+1][y]])   goto android_e;
+       if (is_android_blank[cave[x+1][y-1]]) goto android_ne;
+       if (is_android_blank[cave[x-1][y+1]]) goto android_sw;
+       if (is_android_blank[cave[x-1][y]])   goto android_w;
+       if (is_android_blank[cave[x][y-1]])   goto android_n;
+       if (is_android_blank[cave[x][y+1]])   goto android_s;
        goto android_move;
 
       case 5: /* NE,W,SE,SW,S,N,E,NW */
-       if (is_blank[cave[x+1][y-1]]) goto android_ne;
-       if (is_blank[cave[x-1][y]])   goto android_w;
-       if (is_blank[cave[x+1][y+1]]) goto android_se;
-       if (is_blank[cave[x-1][y+1]]) goto android_sw;
-       if (is_blank[cave[x][y+1]])   goto android_s;
-       if (is_blank[cave[x][y-1]])   goto android_n;
-       if (is_blank[cave[x+1][y]])   goto android_e;
-       if (is_blank[cave[x-1][y-1]]) goto android_nw;
+       if (is_android_blank[cave[x+1][y-1]]) goto android_ne;
+       if (is_android_blank[cave[x-1][y]])   goto android_w;
+       if (is_android_blank[cave[x+1][y+1]]) goto android_se;
+       if (is_android_blank[cave[x-1][y+1]]) goto android_sw;
+       if (is_android_blank[cave[x][y+1]])   goto android_s;
+       if (is_android_blank[cave[x][y-1]])   goto android_n;
+       if (is_android_blank[cave[x+1][y]])   goto android_e;
+       if (is_android_blank[cave[x-1][y-1]]) goto android_nw;
        goto android_move;
 
       case 6: /* E,N,SW,S,NW,NE,SE,W */
-       if (is_blank[cave[x+1][y]])   goto android_e;
-       if (is_blank[cave[x][y-1]])   goto android_n;
-       if (is_blank[cave[x-1][y+1]]) goto android_sw;
-       if (is_blank[cave[x][y+1]])   goto android_s;
-       if (is_blank[cave[x-1][y-1]]) goto android_nw;
-       if (is_blank[cave[x+1][y-1]]) goto android_ne;
-       if (is_blank[cave[x+1][y+1]]) goto android_se;
-       if (is_blank[cave[x-1][y]])   goto android_w;
+       if (is_android_blank[cave[x+1][y]])   goto android_e;
+       if (is_android_blank[cave[x][y-1]])   goto android_n;
+       if (is_android_blank[cave[x-1][y+1]]) goto android_sw;
+       if (is_android_blank[cave[x][y+1]])   goto android_s;
+       if (is_android_blank[cave[x-1][y-1]]) goto android_nw;
+       if (is_android_blank[cave[x+1][y-1]]) goto android_ne;
+       if (is_android_blank[cave[x+1][y+1]]) goto android_se;
+       if (is_android_blank[cave[x-1][y]])   goto android_w;
        goto android_move;
 
       case 7: /* W,SW,NW,N,E,SE,NE,S */
-       if (is_blank[cave[x-1][y]])   goto android_w;
-       if (is_blank[cave[x-1][y+1]]) goto android_sw;
-       if (is_blank[cave[x-1][y-1]]) goto android_nw;
-       if (is_blank[cave[x][y-1]])   goto android_n;
-       if (is_blank[cave[x+1][y]])   goto android_e;
-       if (is_blank[cave[x+1][y+1]]) goto android_se;
-       if (is_blank[cave[x+1][y-1]]) goto android_ne;
-       if (is_blank[cave[x][y+1]])   goto android_s;
+       if (is_android_blank[cave[x-1][y]])   goto android_w;
+       if (is_android_blank[cave[x-1][y+1]]) goto android_sw;
+       if (is_android_blank[cave[x-1][y-1]]) goto android_nw;
+       if (is_android_blank[cave[x][y-1]])   goto android_n;
+       if (is_android_blank[cave[x+1][y]])   goto android_e;
+       if (is_android_blank[cave[x+1][y+1]]) goto android_se;
+       if (is_android_blank[cave[x+1][y-1]]) goto android_ne;
+       if (is_android_blank[cave[x][y+1]])   goto android_s;
        goto android_move;
     }
   }
@@ -4473,7 +4508,7 @@ static void Lstone_fall(int x, int y)
     case Xeater_s:
     case Xeater_w:
       cave[x][y] = Ystone_sB;
-      next[x][y] = Xblank;
+      Lboom_next_new(x, y, Xblank);
       cave[x][y+1] = Yeater_stone;
       next[x][y+1] = Zeater;
       Lboom_eater_old(x, y+1);
@@ -4483,7 +4518,7 @@ static void Lstone_fall(int x, int y)
     case Xalien:
     case Xalien_pause:
       cave[x][y] = Ystone_sB;
-      next[x][y] = Xblank;
+      Lboom_next_new(x, y, Xblank);
       cave[x][y+1] = Yalien_stone;
       next[x][y+1] = Ztank;
       Lboom_tank_old(x, y+1);
@@ -4499,7 +4534,7 @@ static void Lstone_fall(int x, int y)
     case Xbug_2_s:
     case Xbug_2_w:
       cave[x][y] = Ystone_sB;
-      next[x][y] = Xblank;
+      Lboom_next_new(x, y, Xblank);
       cave[x][y+1] = Ybug_stone;
       next[x][y+1] = Zbug;
       Lboom_bug_old(x, y+1);
@@ -4515,7 +4550,7 @@ static void Lstone_fall(int x, int y)
     case Xtank_2_s:
     case Xtank_2_w:
       cave[x][y] = Ystone_sB;
-      next[x][y] = Xblank;
+      Lboom_next_new(x, y, Xblank);
       cave[x][y+1] = Ytank_stone;
       next[x][y+1] = Ztank;
       Lboom_tank_old(x, y+1);
@@ -4594,8 +4629,8 @@ static void Lstone_fall(int x, int y)
 
     case Xbomb:
     case Xbomb_pause:
-      cave[x][y] = Xstone;
-      next[x][y] = Xstone;
+      Lboom_cave_new(x, y, Xstone);
+      Lboom_next_new(x, y, Xstone);
       cave[x][y+1] = Ybomb_blank;
       next[x][y+1] = Ztank;
       Lboom_tank_old(x, y+1);
@@ -7432,6 +7467,14 @@ static void logic_globals(void)
       next[x][y] = cave[x][y];
 }
 
+void logic_init(void)
+{
+  int splash_is_blank = !game_em.use_old_android;
+
+  is_android_blank[Xsplash_e] = splash_is_blank;
+  is_android_blank[Xsplash_w] = splash_is_blank;
+}
+
 void logic(void)
 {
   if (frame == 0)